Play toy;)

So my boyfriend and I broke up a year ago today ( three days before my birthday) and since then we've snuck out and had reeeeaaaalllyyyy nice make out sessions. The past two times we've done this I gave him a bj and he likes to play with my chest. Last night we did it again and he fingered me for the first time and I really enjoyed it. We say every time that there are no feelings attached but it felt different last night. When he was kissing me he pulled me in closer and ran his fingers through my hair as if to make sure I was real. He had this pure look of lust when he made me moan (duh) and I don't know why I have feelings for him again. What should I do? Should I end it? Should I try to get back with him? Give me some advise ladies!